Ivan Valdivia-Gandur1, Víctor Beltrán2, Eduardo Borie3, Wilson Astudillo-Rozas1,4, Oscar Aceituno-Antezana4,5, Nicolas Ferrer-Valdivia4,5, Wilfried Engelke6. 1. Biomedical Department, Universidad de Antofagasta, Antofagasta, Chile. 2. Dental School, Clinical Investigation and Dental Innovation Center (CIDIC), Universidad de La Frontera, Temuco, Chile victor.beltran@ufrontera.cl. 3. Dental School, Clinical Investigation and Dental Innovation Center (CIDIC), Universidad de La Frontera, Temuco, Chile. 4. Master of Biomedical Sciences, Universidad de Antofagasta, Antofagasta, Chile. 5. Dentistry Department, Universidad de Antofagasta, Antofagasta, Chile. 6. Department of Oral and Maxillofacial Surgery, Center for Dentistry, Oral Medicine and Craniomaxillofacial Surgery, University of Göttingen, Göttingen, Germany.
Abstract
AIM: To develop a new surgical model for sinus floor augmentation (SFA) in rabbit for experimental purposes. MATERIALS AND METHODS: Eight adult rabbits were used, two for a surgical design using the anatomical dissection study, and the other six for an endoscopically assisted intraoral approach of SFA unilaterally, creating a subantral space where an allograft biomaterial was deposited. SFA was verified through cone-beam computerized tomography. Healing, weight, food, feces, and behavior were evaluated for 4 weeks post-operatively. RESULTS: All animals survived. There was no bleeding or infection; inflammation was mild. No changes were observed in terms of feeding, weight, feces, or behavior. Tissue healing was normal. CONCLUSION: This model is a refinement of the experimental technique and is a real option for SFA, without compromising animal morbidity because of its conservative design. The minimally invasive approach with endoscopic assistance reduces bias and improves surgical predictability. Copyright
AIM: To develop a new surgical model for sinus floor augmentation (SFA) in rabbit for experimental purposes. MATERIALS AND METHODS: Eight adult rabbits were used, two for a surgical design using the anatomical dissection study, and the other six for an endoscopically assisted intraoral approach of SFA unilaterally, creating a subantral space where an allograft biomaterial was deposited. SFA was verified through cone-beam computerized tomography. Healing, weight, food, feces, and behavior were evaluated for 4 weeks post-operatively. RESULTS: All animals survived. There was no bleeding or infection; inflammation was mild. No changes were observed in terms of feeding, weight, feces, or behavior. Tissue healing was normal. CONCLUSION: This model is a refinement of the experimental technique and is a real option for SFA, without compromising animal morbidity because of its conservative design. The minimally invasive approach with endoscopic assistance reduces bias and improves surgical predictability. Copyright
Authors: Björn Riecke; Max Heiland; Arne Hothan; Michael Morlock; Michael Amling; Felix A S Blake Journal: Clin Oral Implants Res Date: 2011-04-19 Impact factor: 5.977